Search results
Results from the WOW.Com Content Network
In economics the "visible hand" is generally considered to be the macro-fiscal policy of John Keynes that emerged in the 1930s as a remedy for the shortcomings of Adam Smith's "invisible hand" and advocated government intervention in the economy. [4] Actually, Smith already identified the disadvantages of the "invisible hand". [5]
Tunnels in the complex dug by Baldassare Forestiere The accidental discovery of one of Harrison Dyar's tunnels in 1924. Hobby tunneling is tunnel construction as a pastime. [1] [2] Usually, hobby tunnelers dig their tunnels by hand, using little equipment, and some can spend years or even decades to achieve any degree of completion. [2]
Microfoundations are an effort to understand macroeconomic phenomena in terms of economic agents' behaviors and their interactions. [1] Research in microfoundations explores the link between macroeconomic and microeconomic principles in order to explore the aggregate relationships in macroeconomic models.
Slurry wall construction was used in 1967–1968 to construct the "bathtub" that surrounded the foundations of most of the World Trade Center site in New York City. [4] In the 1980s, the Red Line Northwest Extension project in Boston was one of the first projects in the US to use the modern form of the technology, with hydromill trench cutters ...
Construction equipment being used to dig up rocky ground. Although humans are capable of digging in sand and soil using their bare hands, digging is often more easily accomplished with tools. The most basic tool for digging is the shovel. [1] In neolithic times and earlier, a large animal's scapula (shoulder blade) was often used as a crude ...
Also called resource cost advantage. The ability of a party (whether an individual, firm, or country) to produce a greater quantity of a good, product, or service than competitors using the same amount of resources. absorption The total demand for all final marketed goods and services by all economic agents resident in an economy, regardless of the origin of the goods and services themselves ...
A trial pit (or test pit) is an excavation of ground in order to study or sample the composition and structure of the subsurface, usually dug during a site investigation, a soil survey or a geological survey. Trial pits are dug before the construction. They are dug to determine the geology and the water table of that site.
[2] [3] An example is the design of a certain M. Hubby of Maysfield, Texas, consisting of an open hollow cylinder with two blades at the bottom edge. [ 4 ] The first known power earth auger was built in 1943 by John Habluetzel , a farmer in Wamego, Kansas , from parts scavenged from other equipment, including a 7-inch helical blade from a screw ...